Figure 1: Maps of wells and cross-section through the field area. Excess He concentrations in FAS groundwater samples were used to determine relative ages. No numerical ages were assigned because of ...

A study of the effects of water saturation thickness changes on hydrocarbon concentra- tion at the surface requires an appropriate measuring technique. In the present analysis, near-surface ...

A major anti-fracking argument by environmentalists may not have the facts to back it up, a new study conducted by Duke University found. Fracking has not contaminated groundwater in northwestern West ...

A new study has found widespread uranium contamination in groundwater aquifers -- a chief source for drinking water and irrigation -- in 16 Indian states. The primary source of the contamination is ...

High-frequency hydrogeochemical monitoring has revolutionized our understanding of surface water in the past decade by providing a detailed record of hydrologic system response to cyclical forcings (e ...

A new study finds no evidence of groundwater contamination from shale gas production in Arkansas. A new study by scientists at Duke University and the U.S. Geological Survey (USGS) finds no evidence ...

Advanced topics in understanding water-rock interactions and the geochemistry of groundwater during processes such as weathering and recharge, acid mine drainage, diagenesis and hydrothermal ore ...

A team of university students led by the Ontario Geological Survey (OGS) wrapped up its regional groundwater sampling in Thunder Bay, Ont., this past weekend. In recent weeks, the team mapped around ...

My research interests focus on the behavior of continental arcs, where magmatism, deformation and climate processes are linked. I study patterns of episodic continental arc magmatism at many scales to ...